Publication statistics

Pub. period:1993-2007
Pub. count:11
Number of co-authors:24


Number of publications with 3 favourite co-authors:

Heiko Haller:
Raphael Volz:
Denny Vrandecic:



Productive colleagues

Rudi Studer's 3 most productive colleagues in number of publications:

Jrgen Ziegler:49
Dieter Fensel:20
Steffen Staab:20

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Rudi Studer


Publications by Rudi Studer (bibliography)

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Lamparter, Steffen, Ankolekar, Anupriya, Studer, Rudi and Grimm, Stephan (2007): Preference-based selection of highly configurable web services. In: Proceedings of the 2007 International Conference on the World Wide Web 2007. pp. 1013-1022.

A key challenge for dynamic Web service selection is that Web services are typically highly configurable and service requesters often have dynamic preferences on service configurations. Current approaches, such as WS-Agreement, describe Web services by enumerating the various possible service configurations, an inefficient approach when dealing with numerous service attributes with large value spaces. We model Web service configurations and associated prices and preferences more compactly using utility function policies, which also allows us to draw from multi-attribute decision theory methods to develop an algorithm for optimal service selection. In this paper, we present an OWL ontology for the specification of configurable Web service offers and requests, and a flexible and extensible framework for optimal service selection that combines declarative logic-based matching rules with optimization methods, such as linear programming. Assuming additive price/preference functions, experimental results indicate that our algorithm introduces an overhead of only around 2 sec.~compared to random service selection, while giving optimal results. The overhead, as percentage of total time, decreases as the number of offers and configurations increase.

© All rights reserved Lamparter et al. and/or International World Wide Web Conference Committee

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Lamparter, Steffen, Ankolekar, Anupriya, Studer, Rudi, Oberle, Daniel and Weinhardt, Christof (2006): A policy framework for trading configurable goods and services in open electronic markets. In: Fox, Mark S. and Spencer, Bruce (eds.) Proceedings of the 8th International Conference on Electronic Commerce - ICEC 2006 2006, Fredericton, New Brunswick, Canada. pp. 162-173.

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Volkel, Max, Krotzsch, Markus, Vrandecic, Denny, Haller, Heiko and Studer, Rudi (2006): Semantic Wikipedia. In: Proceedings of the 2006 International Conference on the World Wide Web 2006. pp. 585-594.

Wikipedia is the world's largest collaboratively edited source of encyclopaedic knowledge. But in spite of its utility, its contents are barely machine-interpretable. Structural knowledge, e.g., about how concepts are interrelated, can neither be formally stated nor automatically processed. Also the wealth of numerical data is only available as plain text and thus can not be processed by its actual meaning. We provide an extension to be integrated in Wikipedia, that allows the typing of links between articles and the specification of typed data inside the articles in an easy-to-use manner. Enabling even casual users to participate in the creation of an open semantic knowledge base, Wikipedia has the chance to become a resource of semantic statements, hitherto unknown regarding size, scope, openness, and internationalisation. These semantic enhancements bring to Wikipedia benefits of today's semantic technologies: more specific ways of searching and browsing. Also, the RDF export, that gives direct access to the formalised knowledge, opens Wikipedia up to a wide range of external applications, that will be able to use it as a background knowledge base. In this paper, we present the design, implementation, and possible uses of this extension.

© All rights reserved Volkel et al. and/or ACM Press

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Brockmans, Saartje, Ehrig, Marc, Koschmider, Agnes, Oberweis, Andreas and Studer, Rudi (2006): Semantic Alignment of Business Processes. In: Manolopoulos, Yannis, Filipe, Joaquim, Constantopoulos, Panos and Cordeiro, Jos (eds.) ICEIS 2006 - Proceedings of the Eighth International Conference on Enterprise Information Systems Databases and Information Systems Integration May 23-27, 2006, Paphos, Cyprus. pp. 191-196.

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Oberle, Daniel, Staab, Steffen, Studer, Rudi and Volz, Raphael (2005): Supporting application development in the semantic web. In ACM Trans. Internet Techn., 5 (2) pp. 328-358.

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Stojanovic, Nenad, Studer, Rudi and Stojanovic, Ljiljana (2004): An Approach for Step-By-Step Query Refinement in the Ontology-Based Information Retrieval. In: 2004 IEEE/WIC/ACM International Conference on Web Intelligence WI 2004 20-24 September, 2004, Beijing, China. pp. 36-43.

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Stojanovic, Ljiljana, Maedche, Alexander, Stojanovic, Nenad and Studer, Rudi (2003): Ontology evolution as reconfiguration-design problem solving. In: Gennari, John H., Porter, Bruce W. and Gil, Yolanda (eds.) K-CAP 2003 - Proceedings of the 2nd International Conference on Knowledge Capture October 23-25, 2003, Sanibel Island, FL, USA. pp. 162-171.

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Stojanovic, Nenad, Maedche, Alexander, Staab, Steffen, Studer, Rudi and Sure, York (2001): SEAL: a framework for developing SEmantic PortALs. In: K-CAP 2001 - Proceedings of the First International Conference on Knowledge Capture October 21-23, 2001, Victoria, BC, Canada. pp. 155-162.

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Barnekow, Thomas, Staab, Steffen, Ziegler, Jrgen and Studer, Rudi (1999): An architecture for recovering business events bottom-up. In: Bullinger, Hans-Jorg and Ziegler, Jrgen (eds.) HCI International 1999 - Proceedings of the 8th International Conference on Human-Computer Interaction - Volume 2 August 22-26, 1999, Munich, Germany. pp. 614-618.

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Pirlein, Thomas and Studer, Rudi (1995): An Environment for Reusing Ontologies within a Knowledge Engineering Approach. In International Journal of Human-Computer Studies, 43 (5) pp. 945-965.

Domain models can be constructed more easily and made more robust by reusing ontologies in a well-defined way. In this paper the KARO approach is introduced which provides various means of retrieving and adapting components of an ontology as part of a domain model construction process. KARO is based on the knowledge-processing component LILOG-KR provided by the LILOG text-understanding system. Above all, the notion of classification is applied for the retrieval of relevant categories. The upper structure of LILOG-KB serves as an exemplary ontology. By integrating KARO into the Model-based and Incremental Knowledge Engineering Environment (MIKE) the reuse of a predefined ontology can be integrated into the development process of expert systems in a systematic way.

© All rights reserved Pirlein and Studer and/or Academic Press

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Fensel, Dieter, Angele, Jrgen and Studer, Rudi (1993): Giving Structured Analysis Technologie a Formal and Operational Semantics with KARL. In: Zllighoven, Heinz, Altmann, Werner and Doberkat, Ernst-Erich (eds.) Requirements Engineering 93 Prototyping, Gemeinsame Fachtagung des Fachausschusses 4.3 Requirements Engineering der Gesellschaft fr Informatik GI und des Verbunds Software-Technik NRW in Kooperation mit dem German Chapter of the ACM und dem Fachausschu 1993. pp. 267-286.

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